Provides the wipe core for `kebab reset`. Mutually-exclusive ResetScope
variants (All / DataOnly / VectorOnly / ConfigOnly), pure path
enumeration for the confirm UI preview, byte-size estimator, and an
execute helper that removes paths off-disk + truncates
embedding_records when scope is VectorOnly.
Plan deviation from the original spec (task 2):
- Original `truncate_embeddings` helper opened SqliteStore via path and
ran a separate COUNT query through `lock_conn` (private). Both APIs
are unavailable from outside the crate, so the helper now opens the
store via `SqliteStore::open(&Config)` and lets
`truncate_embedding_records` (task 1) report the deleted count
directly.
- Skipped the XDG-env-overriding unit test from the original plan to
avoid race conditions with sibling tests; the equivalent integration
coverage moves up to the CLI tests in task 4 where each invocation
runs in a fresh process.
- Added an FS-touching unit test (`estimate_size_sums_file_lengths`)
to cover the read-side of `estimate_size_bytes` against a tempdir.
p9-fb-06 task 2.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
altair823
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